X-Git-Url: http://git.chise.org/gitweb/?p=elisp%2Fgnus.git-;a=blobdiff_plain;f=lisp%2Fnnmail.el;fp=lisp%2Fnnmail.el;h=910c66765aeca565709d5d108cce70c839776f3f;hp=7255b74684a30f25a709ec2470e290b2b6ffdc0e;hb=c27bc41ce6a1a8188a249dcf3f25959efe4fbb8e;hpb=37e38df5cb4347fa0941d9b291a8ab1feff740b0

diff --git a/lisp/nnmail.el b/lisp/nnmail.el
index 7255b74..910c667 100644
--- a/lisp/nnmail.el
+++ b/lisp/nnmail.el
@@ -189,7 +189,8 @@ The return value should be `delete' or a group name (a string)."
 		   string))
 
 (defcustom nnmail-cache-accepted-message-ids nil
-  "If non-nil, put Message-IDs of Gcc'd articles into the duplicate cache."
+  "If non-nil, put Message-IDs of Gcc'd articles into the duplicate cache.
+If non-nil, also update the cache when copy or move articles."
   :group 'nnmail
   :type 'boolean)